Physics and Astrophysics
School of Mathematics & Physical Sciences

Dr Sergei Zharkov

Sergei Zharkov

Lecturer in Physics

School of Mathematics & Physical Sciences

  • Profile
  • Teaching
  • Research
  • Publications

Profile

Sergei gained his BA in Mathematics in 1996 from Cambridge University and his PhD Conic Structures in Differential Geometry in 2000, from the University of Glasgow. He started his research in Solar Physics by working on solar feature recognition algorithms for European Grid of Solar Observations, moving to local helioseismology research at Sheffield University with Prof. M.J.Thompson in 2005. He joined the Solar Physics group at Mullard Space Science Laboratory, UCL in 2009 where he has worked on the detection and physics of sun-quakes. He was appointed as a lecturer at the School of Mathematics & Physical Sciences at the University of Hull in 2013.

Teaching

Teaching interests: 

  • Astrophysics
  • Mathematics
  • Simulations

Teaching responsibilities:

  • Experimental labs
  • Space physics

Research

I use helioseismology and feature recognition to study solar magnetism via observing changes in wave behaviour on the solar surface and in the atmosphere to infer the properties of underlying plasma, together with detecting and analysing the series of Sun's magnetic features such as sunspots and active regions. My other research interests are computer vision, topological methods in hydrodynamics and MHD and solar dynamo.

Publications

Recent publications

  • On the Seismicity of September 7, 2011 X1.8-class Flare, S.Zharkov, L.K.Green, S.A.Matthews, V.V.Zharkova, JPhCS, 2013
  • Geometric properties of acoustic waves generated by a point source in the solar-like interior: effects of acoustic cut off frequency, S.Zharkov, MNRAS, 2013, doi: 10.1093/mnras/stt420
  • Properties of the 15 February 2011 Flare Seismic Sources, S.Zharkov, L.K.Green, S.A.Matthews, V.V.Zharkova, Sol.Phys, 2012, doi: 10.1007/s11207-012-0169-4
  • Principal component analysis of background and sunspot magnetic field variations during solar cycles 21-23,  Zharkova, V.V., Shepherd, S. J., S.Zharkov, MNRAS, 2012, 424, 2943, doi: 110.1111/j.1365-2966.2012.21436.x
  • Helioseismic Investigation of Sub-Photospheric Properties of a Coronal Hole, S.Zharkov, Harra, L.K., Sekii, T., Sol.Phys, 2012, ASPC, Hinode 3 meeting proceedings
  • 2011 February 15: Sunquakes Produced by Flux Rope Eruption, S.Zharkov, L.K.Green, S.A.Matthews, V.V.Zharkova, Astrop. J. Lett, 2011, 741, 35, doi: 110.1088/2041-8205/741/2/L35
  • Comparison of Seismic Signatures of Flares Obtained by SOHO/Michelson Doppler Imager and GONG Instruments, S.Zharkov, V.V.Zharkova, S.A.Matthews, Astrop. J., 2011, 739, 70, doi: 10.1088/0004-637X/739/2/70
  • Anatomy of a Solar Flare: Measurements of the 2006 December 14 X-class Flare with GONG, Hinode, and RHESSI, S.A.Matthews, S.Zharkov, V.V.Zharkova,  Astrop. J., 2011, 739, 71, doi: 10.1088/0004-637X/739/2/71
  • Statistical properties of Hα flares in relation to sunspots and active regions in the cycle 23,  S.Zharkov, V.V.Zharkova,  JASTP, 2011, 73, 264, doi: 10.1016/j.jastp.2009.11.010
  • Modeling the Subsurface Structure of Sunspots, Moradi, H.; Baldner, C.; Birch, A. C.; Braun, D. C.; Cameron, R. H.; Duvall, T. L.; Gizon, L.; Haber, D.; Hanasoge, S. M.; Hindman, B. W.; Jackiewicz, J.; Khomenko, E.; Komm, R.; Rajaguru, P.; Rempel, M.; Roth, M.; Schlichenmaier, R.; Schunker, H.; Spruit, H. C.; Strassmeier, K. G.; Thompson, M. J.; Zharkov, S., Sol. Phys., 2010, 267, 1, DOI: 10.1007/s11207-010-9630-4
  • Acoustic wave propagation in the solar sub-photosphere with localised magnetic field concentration: effect of magnetic tension, Shelyag, S.; Zharkov, S.; Fedun, V.; Erdélyi, R.; Thompson, M. J., Astron. & Astrophys., 2009, 501, 735, DOI: 10.1051/0004-6361/200911709
  • Helioseismology of Sunspots: A Case Study of NOAA Region 9787, Gizon, L.; Schunker, H.; Baldner, C. S.; Basu, S.; Birch, A. C.; Bogart, R. S.; Braun, D. C.; Cameron, R.; Duvall, T. L.; Hanasoge, S. M.; Jackiewicz, J.; Roth, M.; Stahn, T.; Thompson, M. J.; Zharkov, S., Space Sci. Rev., 2009, 144, 249, DOI: 10.1007/s11214-008-9466-5

View more publications

Back to top